diff --git a/tap_linkedin_ads/__init__.py b/tap_linkedin_ads/__init__.py
index 8da87df..2d0ba27 100644
--- a/tap_linkedin_ads/__init__.py
+++ b/tap_linkedin_ads/__init__.py
@@ -21,7 +21,7 @@
 
 def do_discover(client):
     LOGGER.info('Starting discover')
-    client.check_accounts(client.get_config())
+    client.check_accounts(client.config)
     catalog = _discover()
     json.dump(catalog.to_dict(), sys.stdout, indent=2)
     LOGGER.info('Finished discover')
diff --git a/tap_linkedin_ads/client.py b/tap_linkedin_ads/client.py
index eff32a9..23b55ea 100644
--- a/tap_linkedin_ads/client.py
+++ b/tap_linkedin_ads/client.py
@@ -134,6 +134,7 @@ def __init__(self, # pylint: disable=too-many-arguments
         self.__client_secret = client_secret
         self.__refresh_token = refresh_token
         self.__config_path = config_path
+        self.config = self.get_config()
         self.__user_agent = user_agent
         self.__access_token = access_token
         self.__expires = None
@@ -192,6 +193,7 @@ def write_access_token_to_config(self):
             config = json.load(file)
         # Set new access_token
         config['access_token'] = self.__access_token
+        self.config = config
 
         with open(self.__config_path, 'w') as file:
             json.dump(config, file, indent=2)
diff --git a/tap_linkedin_ads/streams.py b/tap_linkedin_ads/streams.py
index d998f70..9d26c67 100644
--- a/tap_linkedin_ads/streams.py
+++ b/tap_linkedin_ads/streams.py
@@ -315,7 +315,7 @@ def sync_endpoint(self,
         url_list = []
         if self.tap_stream_id in NEW_PATH_STREAMS:
             querystring = '&'.join(['%s=%s' % (key, value) for (key, value) in endpoint_params.items()])
-            config = client.get_config()
+            config = client.config
             account_list = config['accounts'].replace(" ", "").split(",")
             for account in account_list:
                 url = '{}/adAccounts/{}/{}?{}'.format(BASE_URL, account, self.path, querystring)
diff --git a/tap_linkedin_ads/sync.py b/tap_linkedin_ads/sync.py
index b5bf329..fedf5b0 100644
--- a/tap_linkedin_ads/sync.py
+++ b/tap_linkedin_ads/sync.py
@@ -70,7 +70,7 @@ def sync(client, catalog, state):
     """
     sync selected streams.
     """
-    config = client.get_config()
+    config = client.config
     start_date = config['start_date']
     page_size = get_page_size(config)